#3FC171
Closest named color: Dark Mint (#48C072). oklch(72.1% 0.162 152.4), rgb(63, 193, 113).
Aa
Black text reads best on this color (9.07:1).
About this color
#3FC171 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.162 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.006 away. Black text reads best on it, at 9.07:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 9.07:1 |
| White text | 2.31:1 |
Values
| HEX | #3FC171 |
| RGB | rgb(63, 193, 113) |
| HSL | hsl(143, 51%, 50%) |
| OKLCH | oklch(72.1% 0.162 152.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3FC171 | 2.31:1 | Fails | Lc -50.1 | Large or bold text, headings |
| Black text on #3FC171 | 9.07:1 | AAA | Lc 58.8 | Large or bold text, headings |
| #3FC171 text on white | 2.31:1 | Fails | Lc 45.2 | Large or bold text, headings |
| #3FC171 text on black | 9.07:1 | AAA | Lc -56.9 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DCF0E1
oklch(93.6% 0.029 153.3)
-
Step 200
200
#BEE4C7
oklch(88.4% 0.056 152.3)
-
Step 300
300
#8DD4A1
oklch(80.9% 0.102 152.5)
-
Step 400
400 (this color)
#3FC171
oklch(72.1% 0.162 152.4)
-
Step 500
500
#00A455
oklch(63% 0.164 152.5)
-
Step 600
600
#008A47
oklch(55.5% 0.144 152.6)
-
Step 700
700
#00743A
oklch(49% 0.128 152.4)
-
Step 800
800
#00602F
oklch(42.8% 0.112 152.4)
-
Step 900
900
#005026
oklch(37.8% 0.099 152.3)
-
Step 950
950
#003014
oklch(27.1% 0.071 152.1)
#3FC171 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #C1B16B | 0.139 |
| Deuteranopia (no green cones) | #B1A676 | 0.136 |
| Tritanopia (no blue cones) | #00BEAD | 0.085 |
| Achromatopsia (no color) | #AAAAAA | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FC171
#3FC171
oklch(72.1% 0.162 152.4)
- #DF7BD1
#DF7BD1
oklch(72.2% 0.162 332.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3FC171, closest first.
No curated palette has a color within ΔE 0.04 of #3FC171.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.006
- Dark Mint Green #20C073 ΔE 0.013
- Algae Green #21C36F ΔE 0.014
- Cool Green #33B864 ΔE 0.029
- Greenblue #23C48B ΔE 0.031
- Soft Green #6FC276 ΔE 0.038
- Green Blue #01C08D ΔE 0.038
- Boring Green #63B365 ΔE 0.041
Use #3FC171 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.